Expanding Molecular Shell and Possible γ-ray Source Associated with Supernova Remnant Kesteven 67

Yun-Zhi Shen, Yang Chen, Xiao Zhang +4

We investigate the molecular environment of the supernova remnant (SNR) Kesteven 67 (G18.8+0.3) using observations in ${}^{12}$CO, ${}^{13}$CO, HCO${}^{+}$,and HCN lines and possible assoc…